Curdsville Mbr., Lexington Limestone, Kentucky: Chatfieldian, Kentucky

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Strophomenata - Strophomenida - Sowerbyellidae
? Sowerbyella sp. Jones 1928
Strophomenata - Strophomenida - Rafinesquinidae
Rafinesquina sp. Hall and Clarke 1892
Rhynchonellata - Orthida - Dalmanellidae
Dalmanella sp. Hall and Clarke 1892
Rhynchonellata - Orthida - Hesperorthidae
Rhynchonellata - Orthida - Platystrophiidae
Rhynchonellata - Pentamerida - Camerellidae
Rhynchonellata - Atrypida - Anazygidae
Rhynchonellata - Rhynchonellida - Rhynchotrematidae
Bivalvia - Cyrtodontida - Cyrtodontidae
Gastropoda - Murchisoniina - Lophospiridae
Loxoplocus (Lophospira)
Gastropoda - Murchisoniina - Eotomariidae
Gastropoda - Bellerophontida - Tropidodiscidae
Trilobita - Phacopida - Pterygometopidae
Calyptaulax cf. strasburgensis (Ulrich and Delo 1940)
Trilobita - Proetida - Bathyuridae
Raymondites cf. ingalli (Raymond 1913)
see common names

Geography
Country:United States State/province:Kentucky
Coordinates: 38.0° North, 84.7° West (view map)
Paleocoordinates:17.7° South, 114.5° West (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:basin
Time
Period: Ordovician Epoch: Late Ordovician
10 m.y. bin: Ordovician 4-5
Key time interval: Chatfieldian
Age range of interval: 453.8 - 451 m.y. ago
Stratigraphy
Formation:Lexington Limestone Member:Curdsville Limestone
Stratigraphic resolution:member
Lithology and environment
Primary lithology:"cross stratification",phosphatic,shelly/skeletal lithified sandy,cherty/siliceous grainstone
Secondary lithology:phosphatic,shelly/skeletal lithified sandy,cherty/siliceous packstone
Includes fossils?Y
Includes fossils?Y
Environment:deep subtidal ramp Tectonic setting:cratonic basin
Geology comments: environmental call based on field notes of Holland and Patzkowsky
Taphonomy
Modes of preservation:body,original calcite,replaced with silica,replaced with phosphate
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Museum repositories:USNM
Metadata
Database number:34545
Authorizer:S. Holland Enterer:S. Holland
Modifier:S. Holland Research group:marine invertebrate
Collections that are a subset of this one:10757
Created:2003-09-09 07:55:12 Last modified:2025-02-22 15:12:02
Access level:the public Released:2003-09-09 07:55:12
Creative Commons license:CC0
Reference information

Primary reference:
3965. E. R. Cressman. 1973. Lithostratigraphy and depositional environments of the Lexington Limestone (Ordovician) of central Kentucky. USGS Professional Paper 768:1-61 [M. Patzkowsky/M. Patzkowsky/P. Wagner]